Home / 28,136,572.62-42,182,809.92-11,109,990.30

Finding the Fourth Proportional to 28,136,572.62, 42,182,809.92 and 11,109,990.30

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Solution

The fourth proportional to 28,136,572.62, 42,182,809.92 and 11,109,990.30 is: 16,656,279.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136,572.62 : 42,182,809.92 = 11,109,990.30 : x
  2. Step 2: Convert to fraction form
    28,136,572.62/42,182,809.92 = 11,109,990.30/x
  3. Step 3: Cross multiply
    28,136,572.62x = 42,182,809.92 × 11,109,990.30
  4. Step 4: Simplify right side
    28,136,572.62x = 468,650,609,037,943.81
  5. Step 5: Solve for x
    x = 468,650,609,037,943.81/28,136,572.62
  6. Step 6: Final answer
    x = 16,656,279.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.